p-Aminobenzoic acid, an essential metabolite for autotrophic aganisms /
Wiedling, Sten
p-Aminobenzoic acid, an essential metabolite for autotrophic aganisms / Sten Wiedling - [S.l. : s.n.], 1941 - 2 p. ; 29 cm - Science ; 94 .
p-Aminobenzoic acid, an essential metabolite for autotrophic aganisms / Sten Wiedling - [S.l. : s.n.], 1941 - 2 p. ; 29 cm - Science ; 94 .